new Tnum = 0;   
new Handle:ttimer;

public OnPluginStart()
{
  // Сохраняем Handle таймера  
  ttimer = CreateTimer(1.0, lr_t_timer, client, TIMER_REPEAT);  
}

//Счетчик of Terrorist
public Action:lr_t_timer(Handle:timer, any:client)  
{  
  for(new i=1; i <= MaxClients; i++)
  {
   if(IsClientInGame(i) && IsPlayerAlive(i) && GetClientTeam(i) == 2)
   {
    Tnum++;
   }
  }
      ttimer = INVALID_HANDLE;  
   return Plugin_Continue;
}

#include <sourcemod>
new Tnum = 0;

public OnPluginStart()  
{
  CreateTimer(1.0, lr_t_timer, _, TIMER_REPEAT | TIMER_FLAG_NO_MAPCHANGE);   
}  
   
public Action:lr_t_timer(Handle:timer, any:client)   
{   
  Tnum = 0;
  for(new i=1; i <= MaxClients; i++)  
  {  
   if(IsClientInGame(i) && IsPlayerAlive(i) && GetClientTeam(i) == 2)  
   {
    Tnum++;
   }
  }
}